Grid Maths
This function allows you to perform mathematical operations on a particular field of your grid points.
To run this function: Choose File tools > Grid tools > Grid maths, or...
Grid field
Define the field in the grid file to which the operation is to be applied. This may be `Z' or `D1' or `D2', etc.
Operation
Define the operations to be applied.
| = | Set grid equal to a constant. |
| + | Add a constant to a grid. |
| - | Subtract a constant from a grid. |
| * | Multiply grid by a constant. |
| / | Divide grid by a constant. In this case the constant must not be 0. |
| L | Set grid to a constant if the constant is less than the grid value. |
| H | Set grid to a constant if the constant is higher than the grid value. |
Constant
Define the constant value which is to be applied to the grid value using the specified operation.